stanley said:
Is anyone concerned that Tesla batteries are of the telephone type strung together vs the Nissan made battery that is specifically developed from scratch for Ev's
The are are multiple things to be concerned with, one of them is the liquid cooling system required of the Tesla's pack. Even when the vehicle is "parked and off", this liquid cooling system still runs, draining energy from the battery, so the Tesla's need to be connected to the EVSE, even when not in use, as you always have current draining, which also makes it use more energy than an air cooled pack, like in the Leaf.
The other issue is the # of charge cycles their pack can sustain, one of the reasons they have the 200 mile pack on the earlier Roadster is, hardly anyone uses that full charge, so the typical EV driver might go 50 miles, then recharge, so they are only partially cycling the pack. That appears to make the pack "last a long time", when in reality, it still may be a 3-4K cycle pack. And, the replacement pack is not inexpensive (neither are they for the Leaf).
I'm just not sure I trust Tesla, they have a very limited # of Roadsters produced, and nothing else. We'll see how they are doing after a few years of the Model S being out, I am not planning to upgrade to a Model S for the forseeable future, probably would not be before 2015-2016 at the earliest, that will give it time to see how it does in "the real world".